Spacecraft and Experiments
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Recurring Slope Lineae: Evidence of Liquid Water on Mars Today?
Recurring Slope Lineae: Evidence of liquid water on Mars today? The High Resolution Imaging Science Experiment (HiRISE) on Mars Reconnaissance Orbiter (MRO) has monitored surface feature changes over several Mars years. One of the more intriguing observations has been of the seasonal occurrence of numerous (multi-thousand) dark streak features advancing down equator-facing slopes in several mid-latitude and equatorial regions of the southern hemisphere. Termed Recurring Slope Lineae (RSL), the streak behavior resembles that of a fluid mobilized by increasing surface temperatures – initiating in spring, incrementally extending downslope through summer, and then fading in the fall and winter seasons. The phenomenon is then seen to repeat the following spring. RSLs are narrow in width (meter-scale), requiring our best resolution imaging to see them, but may extend down-slope for hundreds of meters before terminating. Science teams involved in the discovery of RSL have been cautious in concluding a water-based origin since most of the RSL locations are found in environments well outside the pressure-temperature stability field for liquid water. However, the presence of salts such as perchlorate can depress freezing points by tens of degrees. MRO Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) observations of multiple RSL locations show hydrated mineral absorption signals most consistent with magnesium perchlorate, magnesium chlorate and sodium perchlorate. That raises the possibility of a Mg-, Na-, Cl-rich brine that would also leave these minerals as a kind of evaporite deposit. However, the amount of water, if present, has been constrained at one location by independent Thermal Emission Imaging System (THEMIS; Mars Odyssey) data analysis and a numerical heat transfer model to 0 wt.%, and up to 3 wt.% given observational uncertainties, unlikely to support a sustained flow. -
University of Iowa Instruments in Space
University of Iowa Instruments in Space A-D13-089-5 Wind Van Allen Probes Cluster Mercury Earth Venus Mars Express HaloSat MMS Geotail Mars Voyager 2 Neptune Uranus Juno Pluto Jupiter Saturn Voyager 1 Spaceflight instruments designed and built at the University of Iowa in the Department of Physics & Astronomy (1958-2019) Explorer 1 1958 Feb. 1 OGO 4 1967 July 28 Juno * 2011 Aug. 5 Launch Date Launch Date Launch Date Spacecraft Spacecraft Spacecraft Explorer 3 (U1T9)58 Mar. 26 Injun 5 1(U9T68) Aug. 8 (UT) ExpEloxrpelro r1e r 4 1915985 8F eJbu.l y1 26 OEGxOpl o4rer 41 (IMP-5) 19697 Juunlye 2 281 Juno * 2011 Aug. 5 Explorer 2 (launch failure) 1958 Mar. 5 OGO 5 1968 Mar. 4 Van Allen Probe A * 2012 Aug. 30 ExpPloiorenre 3er 1 1915985 8M Oarc. t2. 611 InEjuxnp lo5rer 45 (SSS) 197618 NAouvg.. 186 Van Allen Probe B * 2012 Aug. 30 ExpPloiorenre 4er 2 1915985 8Ju Nlyo 2v.6 8 EUxpKlo 4r e(rA 4ri1el -(4IM) P-5) 197619 DJuenc.e 1 211 Magnetospheric Multiscale Mission / 1 * 2015 Mar. 12 ExpPloiorenre 5e r 3 (launch failure) 1915985 8A uDge.c 2. 46 EPxpiolonreeerr 4130 (IMP- 6) 19721 Maarr.. 313 HMEaRgCnIe CtousbpeShaetr i(cF oMxu-1ltDis scaatelell itMe)i ssion / 2 * 2021081 J5a nM. a1r2. 12 PionPeioenr e1er 4 1915985 9O cMt.a 1r.1 3 EExpxlpolorerer r4 457 ( S(IMSSP)-7) 19721 SNeopvt.. 1263 HMaalogSnaett oCsupbhee Sriact eMlluitlet i*scale Mission / 3 * 2021081 M5a My a2r1. 12 Pioneer 2 1958 Nov. 8 UK 4 (Ariel-4) 1971 Dec. 11 Magnetospheric Multiscale Mission / 4 * 2015 Mar. -
Information Summaries
TIROS 8 12/21/63 Delta-22 TIROS-H (A-53) 17B S National Aeronautics and TIROS 9 1/22/65 Delta-28 TIROS-I (A-54) 17A S Space Administration TIROS Operational 2TIROS 10 7/1/65 Delta-32 OT-1 17B S John F. Kennedy Space Center 2ESSA 1 2/3/66 Delta-36 OT-3 (TOS) 17A S Information Summaries 2 2 ESSA 2 2/28/66 Delta-37 OT-2 (TOS) 17B S 2ESSA 3 10/2/66 2Delta-41 TOS-A 1SLC-2E S PMS 031 (KSC) OSO (Orbiting Solar Observatories) Lunar and Planetary 2ESSA 4 1/26/67 2Delta-45 TOS-B 1SLC-2E S June 1999 OSO 1 3/7/62 Delta-8 OSO-A (S-16) 17A S 2ESSA 5 4/20/67 2Delta-48 TOS-C 1SLC-2E S OSO 2 2/3/65 Delta-29 OSO-B2 (S-17) 17B S Mission Launch Launch Payload Launch 2ESSA 6 11/10/67 2Delta-54 TOS-D 1SLC-2E S OSO 8/25/65 Delta-33 OSO-C 17B U Name Date Vehicle Code Pad Results 2ESSA 7 8/16/68 2Delta-58 TOS-E 1SLC-2E S OSO 3 3/8/67 Delta-46 OSO-E1 17A S 2ESSA 8 12/15/68 2Delta-62 TOS-F 1SLC-2E S OSO 4 10/18/67 Delta-53 OSO-D 17B S PIONEER (Lunar) 2ESSA 9 2/26/69 2Delta-67 TOS-G 17B S OSO 5 1/22/69 Delta-64 OSO-F 17B S Pioneer 1 10/11/58 Thor-Able-1 –– 17A U Major NASA 2 1 OSO 6/PAC 8/9/69 Delta-72 OSO-G/PAC 17A S Pioneer 2 11/8/58 Thor-Able-2 –– 17A U IMPROVED TIROS OPERATIONAL 2 1 OSO 7/TETR 3 9/29/71 Delta-85 OSO-H/TETR-D 17A S Pioneer 3 12/6/58 Juno II AM-11 –– 5 U 3ITOS 1/OSCAR 5 1/23/70 2Delta-76 1TIROS-M/OSCAR 1SLC-2W S 2 OSO 8 6/21/75 Delta-112 OSO-1 17B S Pioneer 4 3/3/59 Juno II AM-14 –– 5 S 3NOAA 1 12/11/70 2Delta-81 ITOS-A 1SLC-2W S Launches Pioneer 11/26/59 Atlas-Able-1 –– 14 U 3ITOS 10/21/71 2Delta-86 ITOS-B 1SLC-2E U OGO (Orbiting Geophysical -
Widespread Crater-Related Pitted Materials on Mars: Further Evidence for the Role of Target Volatiles During the Impact Process ⇑ Livio L
Icarus 220 (2012) 348–368 Contents lists available at SciVerse ScienceDirect Icarus journal homepage: www.elsevier.com/locate/icarus Widespread crater-related pitted materials on Mars: Further evidence for the role of target volatiles during the impact process ⇑ Livio L. Tornabene a, , Gordon R. Osinski a, Alfred S. McEwen b, Joseph M. Boyce c, Veronica J. Bray b, Christy M. Caudill b, John A. Grant d, Christopher W. Hamilton e, Sarah Mattson b, Peter J. Mouginis-Mark c a University of Western Ontario, Centre for Planetary Science and Exploration, Earth Sciences, London, ON, Canada N6A 5B7 b University of Arizona, Lunar and Planetary Lab, Tucson, AZ 85721-0092, USA c University of Hawai’i, Hawai’i Institute of Geophysics and Planetology, Ma¯noa, HI 96822, USA d Smithsonian Institution, Center for Earth and Planetary Studies, Washington, DC 20013-7012, USA e NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA article info abstract Article history: Recently acquired high-resolution images of martian impact craters provide further evidence for the Received 28 August 2011 interaction between subsurface volatiles and the impact cratering process. A densely pitted crater-related Revised 29 April 2012 unit has been identified in images of 204 craters from the Mars Reconnaissance Orbiter. This sample of Accepted 9 May 2012 craters are nearly equally distributed between the two hemispheres, spanning from 53°Sto62°N latitude. Available online 24 May 2012 They range in diameter from 1 to 150 km, and are found at elevations between À5.5 to +5.2 km relative to the martian datum. The pits are polygonal to quasi-circular depressions that often occur in dense clus- Keywords: ters and range in size from 10 m to as large as 3 km. -
Non-Collider Searches for Stable Massive Particles
Non-collider searches for stable massive particles S. Burdina, M. Fairbairnb, P. Mermodc,, D. Milsteadd, J. Pinfolde, T. Sloanf, W. Taylorg aDepartment of Physics, University of Liverpool, Liverpool L69 7ZE, UK bDepartment of Physics, King's College London, London WC2R 2LS, UK cParticle Physics department, University of Geneva, 1211 Geneva 4, Switzerland dDepartment of Physics, Stockholm University, 106 91 Stockholm, Sweden ePhysics Department, University of Alberta, Edmonton, Alberta, Canada T6G 0V1 fDepartment of Physics, Lancaster University, Lancaster LA1 4YB, UK gDepartment of Physics and Astronomy, York University, Toronto, ON, Canada M3J 1P3 Abstract The theoretical motivation for exotic stable massive particles (SMPs) and the results of SMP searches at non-collider facilities are reviewed. SMPs are defined such that they would be suffi- ciently long-lived so as to still exist in the cosmos either as Big Bang relics or secondary collision products, and sufficiently massive such that they are typically beyond the reach of any conceiv- able accelerator-based experiment. The discovery of SMPs would address a number of important questions in modern physics, such as the origin and composition of dark matter and the unifi- cation of the fundamental forces. This review outlines the scenarios predicting SMPs and the techniques used at non-collider experiments to look for SMPs in cosmic rays and bound in mat- ter. The limits so far obtained on the fluxes and matter densities of SMPs which possess various detection-relevant properties such as electric and magnetic charge are given. Contents 1 Introduction 4 2 Theory and cosmology of various kinds of SMPs 4 2.1 New particle states (elementary or composite) . -
Philadelphia, Pennsylvania (2)” of the Sheila Weidenfeld Files at the Gerald R
The original documents are located in Box 14, folder “5/12/75 - Philadelphia, Pennsylvania (2)” of the Sheila Weidenfeld Files at the Gerald R. Ford Presidential Library. Copyright Notice The copyright law of the United States (Title 17, United States Code) governs the making of photocopies or other reproductions of copyrighted material. Gerald Ford donated to the United States of America his copyrights in all of his unpublished writings in National Archives collections. Works prepared by U.S. Government employees as part of their official duties are in the public domain. The copyrights to materials written by other individuals or organizations are presumed to remain with them. If you think any of the information displayed in the PDF is subject to a valid copyright claim, please contact the Gerald R. Ford Presidential Library. Some items in this folder were not digitized because it contains copyrighted materials. Please contact the Gerald R. Ford Presidential Library for access to these materials. Digitized from Box 14 of the Sheila Weidenfeld Files at the Gerald R. Ford Presidential Library Vol. 21 Feb.-March 1975 PUBLISHED BI-MONTHLY BY PARC, THE PHILADELPHIA ASSOCIATION FOR RETARDED CITIZENS FIRST LADY TO BE HONORED Mrs. Gerald R. Ford will be citizens are invited to attend the "guest of honor at PARC's Silver dinner. The cost of attending is Anniversary Dinner to be held at $25 per person. More details the Bellevue Stratford Hotel, about making reservations may be Monday, May 12. She will be the obtained by calling Mrs. Eleanor recipient of " The PARC Marritz at PARC's office, LO. -
STUDIES on HARD X-RAY EMISSION from SOLAR FLARES and on Cyclotrop ~- RADIATION from a COLD Magnelt)Pllima
STUDIES ON HARD X-RAY EMISSION FROM SOLAR FLARES AND ON CYCLOTROp ~- RADIATION FROM A COLD MAGNElt)PLliMA PETER HOYNG 30VST: Solar flare of 7 August 1972, taken 0.5 A offband Ha at UT 1520:20. field of viev 3' x 4' (courtesy Big Bear Solar Observatory) STELLINGEN Het elektromagnetische veld in een willekeurig medium is op na- tuurlijke -wijze splitsbaar in stralingsvelden (index s) en Coulomb- velden (index c) -. ->->-->-->- 1 S •"*• **•_ p = D [p ^ o] ; J=J + J ; J =--— -r— D [div J - o] ; c s sec 4TT dt c s -> -+.-•-»•-* -+• E - E + E ; B = 3 [B Ho]. se s c Beide deelvelden met hun bronnen voldoen aan de volledige Maxwell vergelijkingen: div. D = o; div B ~ o div D = 4TTO s 3 c ' c -* 13-* rot E = -—•=— B rot E = o s c at s c * 4T -* 1 J •* rot H = J + — T— D s c s c ót s Het verdient aanbeveling bij de behandeling van elektromagnetische problemen deze splitsing vóóraf uit te voeren en (zonodig) beide vergelijkingssystemen gescheiden op te lossen. II Het leidt ir. principe tot onjuiste resultaten wanneer men bij de berekening van het uitgestraalde vermogen per eenheid van ruimte- hoek een scalaire uitdrukking als uitgangspunt neemt -- zoals bij- .-r -f 3-f- •+• voorbeeld . E"J d r, de arbeid verricht door het door J opgewekte elektrische veld. dit proefschrift, hoofdstuk VI. UI Het onlangs door Molodensky gegeven bewijs van de stabiliteit van het randwaardeprobleem van een krachtvrij magnetisch veld is onjuist; veeleer wordt nogmaals aangetoond dat zeer kritische beoordeling onontbeerlijk is om een tijdschrift op peil te houden. -
Proceedings of the Nimbus Program Review
X-650-62-226 J, / N63 18601--N 63 18622 _,_-/ PROCEEDINGS OF THE NIMBUS PROGRAM REVIEW OTS PRICE XEROX S _9, ,_-_ MICROFILM $ Jg/ _-"/_j . J"- O NOVEMBER 14-16, 1962 PROCEEDINGS OF THE NIMBUS PROGRAM REVIEW \ November 14-16, 1962 GODDARD SPACE FLIGHT CENTER Greenbelt, Md. NATIONAL AERONAUTICS AND SPACE ADMINISTRATION GODDARD SPACE FLIGHT CENTER PROCEEDINGS OF THE NIMBUS PROGRAM REVIEW FOREWORD The Nimbus program review was conducted at the George Washington Motor Lodge and at General Electric Missiles and Space Division, Valley Forge, Pennsylvania, on November 14, 15, and 16, 1962. The purpose of the review was twofold: first, to present to top management of the Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Headquarters, other NASA elements, Joint Meteorological Satellite Advisory Committee (_MSAC), Weather Bureau, subsystem contractors, and others, a clear picture of the Nimbus program, its organization, its past accomplishments, current status, and remaining work, emphasizing the continuing need and opportunity for major contributions by the industrial community; second, to bring together project and contractor technical personnel responsible for the planning, execution, and support of the integration and test of the spacecraft to be initiated at General Electric shortly. This book is a compilation of the papers presented during the review and also contains a list of those attending. Harry P_ress Nimbus Project Manager CONTENTS FOREWORD lo INTRODUCTION TO NIMBUS by W. G. Stroud, GSFC _o THE NIMBUS PROJECT-- ORGANIZATION, PLAN, AND STATUS by H. Press, GSFC o METEOROLOGICAL APPLICATIONS OF NIMBUS DATA by E.G. Albert, U.S. -
RSL), Described in the 5 August 2011 Science Report “Seasonal Flows on Warm Martian Slopes”
Animated GIFs to illustrate activity of Recurring Slope Lineae (RSL), described in the 5 August 2011 Science report “Seasonal Flows on Warm Martian Slopes”. All of these animated GIF files consist of a series of orthorectified HiRISE images over locations with RSL activity. Orthorectification corrects oblique images to show how the scene would appear from directly overhead. We perform this using HiRISE Digital Terrain Models (DTMs) at a scale of 1 m/posting. The orthorectified images are all at 0.25 m/pixel scale (or 0.5 m/pixel in cases noted below), so features smaller than 1-2 m diameter cannot be correctly rectified; the result is that small-scale features like boulders appear to wag back and forth. Each GIF is timed to dwell 2 seconds on the first and last frames and 1 second on intermediate frames, but network or computer performance may cause this to vary. The legend on each image gives the exact HiRISE image identifier; see http://uahirise.org/{image identified} for more information about each image. The legend also marks the year and seasonal identifier (Ls) for each image. The Mars years begin with the first years of Mars exploration by robot spacecraft. Ls stands for areocentric longitude of the sun, dividing the year into 360 degrees to mark the seasons. Ls = 180 is the beginning of southern spring, Ls = 270 is the beginning of southern summer, and Ls = 360 (or 0) is the beginning of southern autumn. Well-preserved crater on floor of Newton Crater Each of the gifs below are enhanced color sequences from different section of this crater slope, starting with faded RSL in MY29 (except one in which the color data was largely missing), then showing a sequence of RSL forming and fading in MY30. -
Geological Applications of Nimbus Radiation Data in the Middle East
X-901-76-164 GEOLOGICAL APPLICATIONS OF NIMBUS RADIATION DATA IN THE MIDDLE EAST (NASI-TM-X-71207) GEOLOGICAL APPLICATIONS N77-10616 OF NIMBUS RADIATION DATA IN MIDDLE EAST (NASA) 106 p HC A06/MF 101 CSCL 08G Unclas G3/43 09624 LEWIS J. ALLISON OCTOBER 1976 GODDARD SPACE FLIGHT CENTER I GREENBELT, MARYLAND For information concerning availability of this document contact. Technical Information &Administrative Support Division Code 250 Goddard Space Night Center Greenbelt, Maryland 20771 (Telephone 301-982-4488) "This paper presents the views of-the author(s), and does not necessarily reflect the views of the Goddard Space Flight Center, or NASA." X-901-76-164 GEOLOGICAL APPLICATIONS OF NIMBUS RADIATION DATA IN THE MIDDLE EAST Lewis J. Allison Meteorology Program Office October 1976 GODDARD SPACE FLIGHT CENTER Greenbelt, Maryland GEOLOGICAL APPLICATIONS OF NIMBUS RADIATION DATA IN THE MIDDLE EAST Lewis J. Allison Goddard Space Flight Center Greenbelt, Maryland 20771 ABSTRACT Large plateaus of Eocene limestone and exposed limestone escarp ments, in Egypt and Saudi Arabia respectively, were indicated by cool brightness temperatures TB < 2400 to 2650 K by the Nimbus 5 Electrically Scanning Microwave Radiometer (ESMR) over a 2-year period. Nubian sandstone, desert eolian sand and igneous metamorphic rocks of the Pliocene, Miocene, Oligocene and Cretaceous period were differentiated from these limestone areas by warm TB values (> 2650 to 300'K). These brightness tempera ture differences are a result of seasonal in-situ ground tempera tures and differential emissivity of limestone (0. 7) and sand, sandstone and granite (0. 9) whose dielectric constants are (6 to 8.9) and (2.9 and 4.2 to 5.3) respectively at 19.35 GHz. -
Aeronautics and Space Report of the President
Aeronautics and Space Report of the President 1971 Activities NOTE TO READERS: ALL PRINTED PAGES ARE INCLUDED, UNNUMBERED BLANK PAGES DURING SCANNING AND QUALITY CONTROL CHECK HAVE BEEN DELETED Aeronautics and Space Report of the President 197 I Activities i W Executive Office of the President National Aeronautics and Space Council Washington, D.C. 20502 PRESIDENT’S MESSAGE OF TRANSMITTAL To the Congress of the United States: I am pleased to transmit herewith a report of our national progress in aero- nautics and space activities during 1971. This report shows that we have made forward strides toward each of the six objectives which I set forth for a balanced space program in my statement of March 7, 1970. Aided by the improvements we have made in mobility, our explorers on the moon last summer produced new, exciting and useful evidence on the structure and origin of the moon. Several phenomena which they uncovered are now under study. Our unmanned nearby observation of Mars is similarly valuable and significant for the advancement of science. During 1971, we gave added emphasis to aeronautics activities which contribute substantially to improved travel conditions, safety and security, and we gained in- creasing recognition that space and aeronautical research serves in many ways to keep us in the forefront of man’s technological achievements. There can be little doubt that the investments we are now making in explora- tions of the unknown are but a prelude to the accomplishments of mankind in future generations. THEWHITE HOUSE, March 1972 iii Table of Contents Page Page I . Progress Toward U.S. -
Photographs Written Historical and Descriptive
CAPE CANAVERAL AIR FORCE STATION, MISSILE ASSEMBLY HAER FL-8-B BUILDING AE HAER FL-8-B (John F. Kennedy Space Center, Hanger AE) Cape Canaveral Brevard County Florida PHOTOGRAPHS WRITTEN HISTORICAL AND DESCRIPTIVE DATA HISTORIC AMERICAN ENGINEERING RECORD SOUTHEAST REGIONAL OFFICE National Park Service U.S. Department of the Interior 100 Alabama St. NW Atlanta, GA 30303 HISTORIC AMERICAN ENGINEERING RECORD CAPE CANAVERAL AIR FORCE STATION, MISSILE ASSEMBLY BUILDING AE (Hangar AE) HAER NO. FL-8-B Location: Hangar Road, Cape Canaveral Air Force Station (CCAFS), Industrial Area, Brevard County, Florida. USGS Cape Canaveral, Florida, Quadrangle. Universal Transverse Mercator Coordinates: E 540610 N 3151547, Zone 17, NAD 1983. Date of Construction: 1959 Present Owner: National Aeronautics and Space Administration (NASA) Present Use: Home to NASA’s Launch Services Program (LSP) and the Launch Vehicle Data Center (LVDC). The LVDC allows engineers to monitor telemetry data during unmanned rocket launches. Significance: Missile Assembly Building AE, commonly called Hangar AE, is nationally significant as the telemetry station for NASA KSC’s unmanned Expendable Launch Vehicle (ELV) program. Since 1961, the building has been the principal facility for monitoring telemetry communications data during ELV launches and until 1995 it processed scientifically significant ELV satellite payloads. Still in operation, Hangar AE is essential to the continuing mission and success of NASA’s unmanned rocket launch program at KSC. It is eligible for listing on the National Register of Historic Places (NRHP) under Criterion A in the area of Space Exploration as Kennedy Space Center’s (KSC) original Mission Control Center for its program of unmanned launch missions and under Criterion C as a contributing resource in the CCAFS Industrial Area Historic District.